The High-End Recording Microphone That Time Forgot 

George, this is invaluable information. Thank you!

@@Hainbach damn I love when that happens. RU-vid communities, dude...

how did you power the mic and the engine? with batterie with external power and how the static mic is power ? with the battery of the engine or with external 48volt power? thanks!

@@soundtrue6560 First off. Information that applies to ALL B&K gear. And this is super important. Check whether the mic capsule has a red ring inscribed in the base of the metal of the capsule. The ring denotes the capsule is a prepolarized condenser mic. Do Not apply a polarisation voltage. Or you risk messing with the prepolarization charge in the electret film coated on the top of the mic base plate electrode. That in turn messes with the mic sensitivity in mV/Pa. Usually, the polarisation on off switch is hidden inside the battery compartment area. I suggest you follow Heinbach solution he did exactly what I would do. In general, B&K would create a $200 connector for them selves. The industry would create a similar connector at 1/10 the price and with the same geometry. That's why Heinbach was able to find an alternative. As a last resort, I have added a more common socket in parallel to the old socket (leaving it in) to the case to make the equipment functional again but only in extreme cases where all else fails. For super quiet set ups, I use lithium battery packs from power tools to power audio preamps. I buy a charger shoe, strip out the electronics, making sure I pick the correct electrodes on the shoe (measure the V) and use the 240V lead out as the plug /socket output. Use a couple of 24V batteries in series to get your 48V. The shoe assembly gives you a way of hot swapping batteries, and a second charger shoe,/ station. I use to charge the battery. I used Aldi Etool batteries and shoes. I opened one up, they use first class Samsung battery and BMS and they are super cheap when on special. I introduced this setup where I worked and all the technical staff wanted one for their section.

@@geor664 tx i will try to understand all what you said i am french! if i found one one day, how to check if all work ? what battery need to make this work! and if there is no more battery work do you think it s worth to buy one and try to repare it? at what price do you think an non tested machine worth? tx for all!

Oh! Is that what he said! ahahahahaha

Yes I agree

@@rockapartie "Look Mum, No Computer" is the name of another musician. He has quite a wonderful RU-vid channel too, highly recommend checking him out!

lol

One of these days, he might catch us off guard with that.

Damn it I was literally about to comment this, I thought I was original for a second 😂😂😂

Maybe comically huge for today's design, but it was quite compact for the limitations of the technology of the day. Try to view the equipment with respect to the period it was built in to gain an aspect of what B&K achieved at the time. From memory this was something like $24,000 piece of equipment without the filter box accessory. Only large labs could afford one. Insanely expensive kit. Now?, $150?

Oh no! Now LMNC is gonna buy them all!

stop buying up this nice man's toys!

​@@cpi23 theres plenty to go round! its all gooood. hoarders can coinhabit :)

Yeah, it threw me off when the package arrived. Trying to get it into position is challenging, but it's fun to hold while singing.

Hi Sam. How is the gameboy synth coming along? The rack system you're housing it in looks a little flimsy for the job...maybe some re-enforcement?

Alex Cavalco yep. They’re getting scarce on eBay

Just like when EEVBlog mentioned some gear he picked up off ebay.

Yeeeeeah, the first part with the high chords especially!

Yeah, the filters are cheap as chips, which is beautiful! Can't wait to explore them more.

me too, may be the last one for super cheap .. thank you Hainbach you opened my eyes

@@Hainbach Hei mann. Quick question: do you have a Theramin? Or do you know anything about them? I tried one a while ago, and I think I need one!

lol, that's why I couldn't find any.

What were you doing with it?

@@NeuronalAxon If I remember correctly, we measured the sound level of some parts in a bus.

@@omjagkundesjunga - That's interesting - thanks for the reply.

or music - even more than for film

Sweet! I really want to make a feedback box from the filters using a matrix mixer. I believe that it will sound beautiful.

I would REALLY love to see its innards bent.. Awesome content!

We do what we must because we can! (I've got it stuck in my head now)

The analogue output is required to record the (calibrated) SPL to tape, so that it works as an integrating sound level meter. You could connect the tape recording to a paper plotter and determine parameters like equivalent levels, statistical levels etc over the measurement (recording) duration. Without the capability to record, the sound level meter only displays instantaneous sound pressure level, which is not so useful.

Glad you found my channel! The range on that mic is unreal - it goes way into inaudible ranges, which makes for that hyperreal effect.

insanely good is the better definition for this gadget.

That is interesting! I love the green, it's very special.

Aww! Its a demo for play I am scoring in Essen. Going to continue composing for that this week.

@@Hainbach hope that there will be a cassette or vinyl realease of this song, sounded great!

Yeah, and positioning is not easy, either :-)

But it's well worth it when you achieve it, great sound on the piano.

The classic gear has to be quite satisfying to handle - all that weight tells you they were really serious about building equipment in those days.

Thank you! It can be a challenge and often means late nights, but it's very rewarding because of the people watching. I am always learning back.right now I am puting more of my work into the videos, like the singing parts here. So it blends more.

Sam and me already hung out at my studio a good while ago. :-)

yes! looking forward for that video to finally come out!! but hainbach we should definitely do it again!

@@Hainbach we want to see a vid

Yeah, that is what I love about test equipment. It's made to a very high standard.

I will get the 2209 with the third octave filter soon as a donation from a retired professor. Hopefully I can make a video on that too and share details.

They are the best!

You can use VoodooLab DC to jack adapters they make for their power supplies

Wish and you shall receive:ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-gIAMGugWYns.html

Thank you for that tip! I will look out for that cable, I would love a bit more flexibility.

Is it the Pistonphone or similar name?

@@Hainbach I think the device I'm thinking of must be part of the 220x range. Perhaps the pistol grip was an accessory? IIRC, there was a "press to sample" button on the grip - so that you could hold the meter at maximum arms-length (sound reflections off the body give artificially high readings) - then pull it close to read the meter precisely. As students we were warned *not* to point it at people, as it did give the distinct impression of a handgun (or raygun - with the bulbous windshield attached).

aha!!! glad someone got that one! problem with that is i dont think it has the mic capsule. which are pretttty pricey. but still can be used with even a piezo with modification, possibly.

@@LOOKMUMNOCOMPUTER it's mostly just the filter I want tbh 😊 I'm sure I'll be able to figure out some kind of adapter too

@@emilcarr7190 they are aweeesome!

Thank you! Cool to hear people outside of the music sphere enjoy my videos.

You mean like a Windows domain controller?

Danke dir! Es ist viel Arbeit, aber auch große Freude!

Yeah,it's from Woyzeck from Büchner - scoring that in Schwerin right now.

Camouflage paint from ww2 mixed with white - basically the cheapest color they could get became the trademark

Thanks! If you want to see more look at the playlisten, "Tape Techniques" and "On Composition and Instruments" for more talkies, and the ambient list if you want something to listen to.

Thanks for making me laugh!

@@Hainbachyou are so welcome, nice to have found your channel and thank you for the inspiration! Now, we agree on one thing, magnetic tape, it has irresistible qualities, and then I remembered something that sounds so juicy and wicked. Hope you'll allow me to return the favour and that you watch this RU-vid link for the first time, and smile. Its a surprise. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Dk37D_tkCCc.html Edit: I'm not affiliated.

Hi Eric, that sounds very cool - let me measure it once I come back. Can you email me or dm via insta/Twitter/FB?

@@Hainbach Absolutely! Very excited about creating this for you! I I will initiate a contact outside this forum as soon as I am home tomorrow AM CST USA. 😀

Danes in this case, though Brüel & Kjær was bought by a German holding company in the early 90's.

Danes!

I have used B&K gear since graduating. It's bulletproof!

Pepi jesi to ti? he he di te nađe :-)

Awesome! I can imagine that scene.

Thank you! Uploading another weird test equipment one right now for later tonight.